Features:The product use a unique rubber ring attaches in the POP filter of microphone,and there is no need for clamps or gooseneck to mount.It moves with the microphone no matter how you place it.The product is designed with two layersthat effectively prevent the saliva from spraying on the microphone head,and maintain the cleanness of microphone,effectively reduce the plosive.Fit for :45mm-68mm diameter microphone